Cooling ash removal roller

Abstract

The utility model discloses a cooling and dedusting roller, which belongs to the technical field of material filtration and comprises a base. A roller body is arranged above the machine base, and the two ends of the roller body are in transmission connection with a feeding end cover and a discharging end cover respectively. One end of the cooling filter screen is open, a water flow distributor is arranged at one end of the cooling filter screen, and a rotary connector is arranged at the axis of the water flow distributor and rotationally connected with the feeding end cover; the filtering cavity is communicated with an ash outlet of the discharging end cover through an ash discharging hole formed in the roller body; and the inner cavity is directly communicated with the particle outlet. An annular cooling filter screen composed of the framework and the screen is matched with the roller bracket and the discharging end cover, and the filter cavity is communicated with an ash outlet of the discharging end cover through ash discharging holes formed in the roller body. The inner cavity is directly communicated with the particle outlet located at the end of the roller bracket, and cooling in the screening process is achieved.

Description

Technical fields:

[0001] This utility model belongs to the field of material filtration technology, and more specifically relates to a cooling and ash removal drum. Background technology:

[0002] In the current field of low-temperature pyrolysis and purification of low-rank pulverized coal, granular bed dust removal technology is the most stable and reliable process among high-temperature oil and gas dust removal processes that have been put into large-scale production. Patent CN219308240U discloses a high-temperature oil and gas moving bed dust removal process device, in which the filter uses high-temperature hot flue gas to directly contact and heat the upgraded coal particles as filter media. In this process device, after the filter media is discharged, it enters a cooling furnace at 500°C along with the upgraded coal product. After being cooled together to below 30°C, it is then screened by a vibrating screen to select particles with a diameter greater than 5mm for reuse as filter media.

[0003] This device is only used when the filter media and product composition are the same. After absorbing dust, the filter media can be discharged into the product without contaminating it, and the product's cooling equipment simultaneously cools the filter media. However, when the filter media and product composition differ, the filter media must be separated from the product and cooled. Furthermore, because the filter media is purchased externally, filter media regeneration (dust removal and reuse) must be implemented to reduce costs. Utility Model Content:

[0004] To solve the above problems and overcome the shortcomings of the existing technology, this utility model provides a cooling and ash removal drum;

[0005] The first technical problem to be solved is that the high-temperature oil-gas moving bed does not have a separation function, while the existing separation drum does not have a cooling function;

[0006] The second technical problem to be solved is that the cooling separation roller has a complex structure and is not easy to maintain.

[0007] The specific technical solution of this utility model to solve the above-mentioned technical problems is as follows: the cooling and ash removal drum includes a base; a drum body is arranged above the base, the drum body is rotatably connected to the base through rollers, and the drive structure drives the drum body to rotate through gears and a gear ring arranged on the drum body. The two ends of the drum body are respectively connected to a feed end cover and a discharge end cover, and both the feed end cover and the discharge end cover are rotatably connected to the drum body through a drum bracket. The characteristic feature is that:

[0008] A ring-shaped cooling filter is coaxially arranged inside the drum body; the cooling filter divides the drum body into an inner cavity and a filtration cavity; the cooling filter has an open structure at one end, and a water flow distributor is provided at one end of the cooling filter. A rotary connection joint is provided on the axis of the water flow distributor, and the rotary connection joint is rotatably connected to the feed end cover.

[0009] The roller bracket divides the discharge end cover into an ash outlet and a particle outlet. The filter chamber is connected to the ash outlet of the discharge end cover through an ash discharge hole opened in the roller body; the inner cavity is directly connected to the particle outlet.

[0010] Furthermore, the cooling filter screen includes a frame and a screen, the screen being fixed to the frame by a U-shaped clamp, and the frame forming a filter cavity with the inner wall of the roller body by a tube bundle bracket.

[0011] Furthermore, the frame consists of a predetermined number of U-shaped cooling pipes arranged along the longitudinal direction of the drum body, and the U-shaped cooling pipes are connected in a ring matrix on the water flow distributor.

[0012] Furthermore, the inlet and outlet ends of the U-shaped cooling pipe are respectively connected to the two independent chambers of the water flow distributor; the two independent chambers of the water flow distributor are connected to the rotary connector.

[0013] Furthermore, the U-shaped cooling pipes are fixed to the inner wall of the drum body by the tube bundle bracket, and a preset number of U-shaped cooling pipes are connected by U-shaped clamps and screens.

[0014] Furthermore, the end of the frame away from the rotary connector is an open feed end, and the feed end cover introduces the material into the feed end of the frame through the feed port and the feed chute.

[0015] Furthermore, the feed end cover and the discharge end cover are fixed to the machine base by a support frame.

[0016] The beneficial effects of this utility model are:

[0017] One advantage of this utility model is that it provides a ring-shaped cooling filter screen composed of a frame and a screen, which, together with the drum support and the discharge end cover, connects the filter chamber to the ash outlet of the discharge end cover through the ash discharge hole opened in the drum body; the inner cavity is directly connected to the particle outlet located at the end of the drum support, thereby realizing cooling during the screening process.

[0018] One advantage of this invention is that it provides a cooling filter screen comprising a frame and a screen, wherein the frame and screen are connected to the inner wall of the drum body via a tube bundle bracket to form a filter chamber, and the screen is fixed by a U-shaped clamp, facilitating screen replacement and maintenance.

[0019] One advantage of this invention is that the inlet and outlet of the U-shaped cooling pipe are respectively connected to the water flow distributor; the water flow distributor is connected through a rotary connector, which ensures the water supply and drainage during the rotation of the cooling filter. Attached image description:

[0020] Appendix Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Appendix Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0022] Appendix Figure 3 This is a schematic diagram of the roller body structure of this utility model;

[0023] Appendix Figure 4 This is a schematic diagram of the cooling filter structure of this utility model;

[0024] Appendix Figure 5 This is a partial structural diagram of the cooling filter screen of this utility model;

[0025] Appendix Figure 6 This is a schematic diagram of the structure of this utility model in an embodiment; in the attached drawing:

[0026] 1. Drum body; 2. Feed end cover; 3. Discharge end cover; 4. Machine base; 5. Idler roller; 6. Drive structure; 7. Gear ring; 8. Feed chute; 9. Cooling filter; 10. Support frame; 11. Water flow distributor; 12. Rotary connecting joint; 13. Drum bracket; 14. Particle outlet cavity; 15. Ash discharge cavity; 16. Frame; 17. Screen; 18. U-shaped clamp; 19. Lifting plate; 20. Ash discharge hole. Detailed implementation method:

[0027] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "left," "right," "rear," "lower left," "upper right," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] The specific embodiment of this utility model is as follows: The cooling and ash removal drum includes a base 4, and a drum body 1 is arranged above the base 4. The drum body 1 is rotatably connected to the base 4 through a roller 5. A drive structure 6 drives the drum body 1 to rotate through gears and a gear ring 7 arranged on the drum body 1. The two ends of the drum body 1 are respectively connected to a feed end cover 2 and a discharge end cover 3. Both the feed end cover 2 and the discharge end cover 3 are rotatably connected to the drum body 1 through a drum bracket 13. The feed end cover 2 and the discharge end cover 3 are fixed to the base 4 through a support frame 10. The improvement of this utility model is as follows:

[0029] A ring-shaped cooling filter 9 is coaxially arranged inside the drum body 1; the cooling filter 9 divides the drum body 1 into an inner cavity and a filter cavity; the cooling filter 9 has an open structure at one end, and a water flow distributor 11 is provided at one end of the cooling filter 9. A rotary connection joint 12 is provided on the axis of the water flow distributor 11, and the rotary connection joint 12 is rotatably connected to the feed end cover 2.

[0030] As a preferred embodiment of the present invention, the cooling filter 9 can be configured to include a frame 16 and a screen 17. The screen 17 is fixed to the frame 16 by a U-shaped clamp 18. The frame 16 forms a filter cavity with the inner wall of the roller body 1 by a tube bundle bracket.

[0031] Specifically, the frame 16 consists of a predetermined number of U-shaped cooling pipes arranged along the longitudinal direction of the drum body 1. The U-shaped cooling pipes are connected in a ring matrix to the water flow distributor 11. The inlet and outlet ends of the U-shaped cooling pipes are respectively connected to two independent chambers of the water flow distributor 11. The two independent chambers of the water flow distributor 11 are connected to the rotary connector 12. The U-shaped cooling pipes are fixed to the inner wall of the drum body 1 through the pipe bundle bracket. The predetermined number of U-shaped cooling pipes are connected to each other through U-shaped clamps 18 and screens 17. The frame 16 facing away from the rotary connector 12 is an open feed end. The feed end cover 2 introduces the material into the feed end of the frame 16 through the feed inlet and the feed chute 8.

[0032] The roller bracket 13 divides the discharge end cover 3 into an ash discharge chamber 15 and a particle discharge chamber 14. The filter chamber is connected to the ash discharge chamber 15 of the discharge end cover 3 through the ash discharge hole 20 opened in the roller body 1; the inner cavity is directly connected to the particle discharge chamber 14.

[0033] It should be noted that this utility model is a cooling and ash removal drum. In specific operation...

[0034] 1. Pretreated coal ash is added to the feed end of the frame 16 through the feed chute 8. Since the cooling filter screen 9 has an open structure at one end, the material falls onto the cooling filter screen 9. The cooling filter screen 9 is fixed to the frame 16 by the screen 17 through the U-shaped clamp 18. The frame 16 forms a filter chamber with the inner wall of the drum body 1 through the tube bundle bracket. In this way, the material can be screened during the cooling process.

[0035] Ash powder falls into the filter chamber. Due to the tilting and rotation of the drum body 1, the feed inlet is slightly higher than the outlet, with an angle of 5 to 10°. It flows out through the ash discharge hole 20 of the drum body 1 to the ash discharge chamber 15 by gravity, while the particulate matter is isolated in the inner cavity and discharged through the particulate discharge mouth 14.

[0036] 2. The frame 16 consists of a predetermined number of U-shaped cooling pipes arranged along the longitudinal direction of the drum body 1. The U-shaped cooling pipes are connected in a ring matrix to the water flow distributor 11. The inlet and outlet ends of the U-shaped cooling pipes are respectively connected to the two independent chambers of the water flow distributor 11. The two independent chambers of the water flow distributor 11 are connected to the rotary connector 12. This ensures the water circulation and rotation of the U-shaped cooling pipes, and the principle is the same as that of the rotary connector 12.

[0037] 3. The impact of the filter media being lifted high by the lifting plate can effectively clear screen blockages.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cooling and ash removal roller, comprising a base (4), a roller body (1) arranged above the base (4), the roller body (1) being rotationally connected to the base (4) by a roller support (5), a driving structure (6) driving the roller body (1) to rotate by engaging with a gear and a ring gear (7) arranged on the roller body (1), and a feeding end cover (2) and a discharging end cover (3) being respectively transmissionally connected to two ends of the roller body (1), the feeding end cover (2) and the discharging end cover (3) being rotationally connected to the roller body (1) by a roller bracket (13), characterized in that: a ring-shaped cooling filter screen (9) is coaxially arranged in the roller body (1), the cooling filter screen (9) divides the roller body (1) into an inner cavity and a filtering cavity, the cooling filter screen (9) is in an open structure form at one end, a water flow distributor (11) is arranged at one end of the cooling filter screen (9), a rotary connection joint (12) is arranged at the axis of the water flow distributor (11), and the rotary connection joint (12) is rotationally connected to the feeding end cover (2). The roller bracket (13) divides the discharging end cover (3) into an ash discharging cavity (15) and a particle outlet cavity (14), the filtering cavity is connected to the ash discharging cavity (15) of the discharging end cover (3) through an ash discharging hole (20) arranged in the roller body (1), and the inner cavity is directly connected to the particle outlet cavity (14). The cooling filter screen (9) comprises a framework (16) and a screen mesh (17), the screen mesh (17) is fixed on the framework (16) by a U-shaped clamp (18), and the framework (16) is enclosed with the inner wall of the roller body (1) by a tube bundle bracket to form the filtering cavity.

2. The cooled ash removal drum of claim 1, wherein The framework (16) is a preset number of U-shaped cooling tubes arranged along the longitudinal direction of the roller body (1), and the U-shaped cooling tubes are connected in a ring matrix on the water flow distributor (11).

3. The cooled ash removal drum of claim 2, wherein The water inlet end and the water outlet end of the U-shaped cooling tube are respectively connected to two independent chambers of the water flow distributor (11), and the two independent chambers of the water flow distributor (11) are connected to the rotary connection joint (12).

4. The cooled ash removal drum of claim 3, wherein The U-shaped cooling tube is fixed to the inner wall of the roller body (1) by the tube bundle bracket, and the preset number of U-shaped cooling tubes are connected by the U-shaped clamp (18) and the screen mesh (17).

5. The cooled ash removal drum of claim 3, wherein The framework (16) at the end away from the rotary connection joint (12) is an open feeding end, and the feeding end cover (2) guides the material into the feeding end of the framework (16) through a feeding port and a feeding chute (8).

6. The cooled ash removal drum of claim 3, wherein The feeding end cover (2) and the discharging end cover (3) are fixed to the base (4) by a support frame (10).

7. The cooled ash removal roller of claim 3, wherein ​

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